cycbot | df38ecc2eeb18c65583b91423b02468dc7ac658372ab54ff4defcc84cf0717c9

General

Target

JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
Size

157KB
MD5

54d9013c1b27f9194a71635eb0d042b8
SHA1

55e9f043081fc339450d447a473f065eb4a7a5a1
SHA256

df38ecc2eeb18c65583b91423b02468dc7ac658372ab54ff4defcc84cf0717c9
SHA512

eb7481df94fb5c15ca5aec743ef9a13b385ef88f6fe014ca28997a8d161cbbef62b658ea91b79cadfe9c958cc3b0725931a925b6d25f9746ae1f98434fdfe9a5
SSDEEP

3072:EtjkPdqCSIIqPKdyWKcVUyY8GcmYiokJfiRsve09K/X8p2:yjkghsO1VWyYRcI0sMMA

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 6 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2620-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2620-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1304-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2736-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1304-158-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1304-204-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1304-1-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2620-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2620-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1304-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2736-79-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2736-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1304-158-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1304-204-0x0000000000400000-0x0000000000442000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 2620	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	30
PID 1304 wrote to memory of 2620	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	30
PID 1304 wrote to memory of 2620	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	30
PID 1304 wrote to memory of 2620	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	30
PID 1304 wrote to memory of 2736	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	32
PID 1304 wrote to memory of 2736	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	32
PID 1304 wrote to memory of 2736	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	32
PID 1304 wrote to memory of 2736	1304	JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2620
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_54d9013c1b27f9194a71635eb0d042b8.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\61C7.2AD

Filesize
1KB

MD5
53fbea7fc300f42a6c05e9ad3fcd5da9

SHA1
4f47de03950dfc6800d9cbc1e1a8ffa96060e842

SHA256
7e4b0fa25aeab512c7306099910b5916e01cc74719e317dc1d78c32d0059cc8e

SHA512
4b3e5da653ea10c82b1c7225d26e94422fc7d49fb80731bf12a9f71194a32f0e0d403e29fb7dd18377f2b0faa59010ae11aa062ae68250318004884008c22a74

Download Submit
C:\Users\Admin\AppData\Roaming\61C7.2AD

Filesize
600B

MD5
beecb27f9c604c59b058b39b1762de11

SHA1
7553c172c9d9608db03f7e412cc90b521205e666

SHA256
2371cc2856565f0c89366c46f6145fb3843df52ebf5f168b93ef2b635bbc724e

SHA512
36fb03ba7dc0098ae5913218c577a2168bdfeda335191e09dd0427890b94d6f8e81ae6c562759cb68e8b10b92ffcab957a3bcd0773657808f7bc145e5c8a7c86

Download Submit
C:\Users\Admin\AppData\Roaming\61C7.2AD

Filesize
996B

MD5
9f20804449f3c9779e48ac8bd6a087ca

SHA1
b7ac77404beaa5c6e0143b54116c77b5a0961679

SHA256
9f499bcc40796c2a6e1ab46a230c2622df9b33274521dad9809880a38ce39ee8

SHA512
51eadda5227b7bc159680e02592900efecf7e228da3390ddfe1cde58daa5be62e74f9cf14be5a4cf6e53b911f9ccfbd22cea8b4f09f37c534042fed5a32e6162

Download Submit
memory/1304-204-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1304-158-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1304-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1304-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2620-3-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2620-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2620-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2620-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads